S&P expects the breach to have a “somewhat lingering effect” on traffic at the retailer’s stores through at least August of this year. Sales slowed in the most recent quarter, which ended Feb. 1.

Target recently said its ongoing investigation of the breach could turn up “additional information that was accessed or stolen.”

But the agency also said Target’s outlook is stable. Although the retailer lost $723 million in Canada last year, S&P expects those losses to narrow in 2014. The agency also considers costs due to the data breach to be “significant but manageable.”